Nike co-founder Bill Bowerman used to be an Oregan Duck and the days that he spend on the team are being celebrated this season with the Air Trainer Mid ‘BB51′ Pack.

The pack consists of two premium versions of the iconic mid top sneaker, featuring his initials and jersey number embroidered on the heel. Both colorways, kakhi/black and black/khaki, are releasing at select retailers around the globe this weekend.